Introdu
Iof1816reflehisexperiencearanslationoftheworksofHomer,theyoungEJohethepureserene’in‘realmsofgold’,andued:
&Ilikesomewatcheroftheskies
laswimsintohisken;
OrlikestoutCortezwhenwitheagleeyes
&ar’datthePadallhismen
Look’dateachotherwithawildsurmiseSilent,uponapeakinDarien。
&s’saphorwaseitherinspiredbySirWilliamHerschel’ssightingofUranusin1781,orbydiscoveriesofthefirstfourasteroids(1801–7)。Beihelatterwouldhavebeenfresherinpeople’smemories。AlaymansuchasKeatswouldhavethoughtofthemashoughtodaytheyareregardedastoosmalltoqualify。
Istilltravelin‘realmsofgold’wheurnwithmyowhroughevenasmalltelescope,thoughtheyhassomewhatfadedwheoseeinganewlydisoteice-ballasasinglepixelinadigitalimage,orahintofaJupiter-sizedpaniontoaarexpressedasaminutewobbleiar’sposition。
However,forme,thetrue‘Cortezexperience’reeverIseeaarylandssomecases,acloudsfoldbeforemeobaavisiti。ExplorationofourSolarSystemhasreachedastagethatalloreciateotherplaheirlargesatellitesasworlds,ehgeeologies,aeiesasplexandfasgasthoseofourowh。ManyofthemareplacesthatyouandIpri。Theyarenotgenerallysuitableforapiic,butwecouldatleastjumpupanddown,scoopuphandfulsofdirt,climbahill,orslitherdownintoavalley。Someareevenplaceswherelifemightbefound。
Inthisbook,Iwillsharewithyouwhatisknowniion,ahepresent-dayoftheplasinourSolarSystem。Here,astronomersnowofficiallyrelyeightplaohasbeeed,asIwilldescribe),butthereareplentyofotherbodiesbigenoughtobehavelikeplasseologistslikemyselfareed。Thesearefasg,soIwillhoughtheyaretooreatindividually。
Finally,Iwillturs’,laiars。Thefirstwasdiscoveredasretlyas1995,andbynowseveralhundredhavebeeed。WeotseethemiwedohaveenoughinformationtomakesomeparisohelayoutsofthoseexoplaemsandtheSun’sfamily。